Acast website screenshot

Acast

Acast is a podcast hosting, distribution, and advertising marketplace that helps creators publish shows, distribute to every major listening platform, and monetize through dynamic ad insertion and sponsorships. Acast exposes a documented public Publishing API for programmatically managing shows and episodes - listing shows and episodes, fetching details, and creating, updating, and deleting episodes - plus placing ad markers and receiving webhook notifications for events like new episode publications. The API is documented openly at developers.acast.com, but access is gated - an X-API-Key credential is issued by Acast's customer success team to accounts on the Ace plan or in the Acast Creator Network.

Acast publishes 4 APIs on the APIs.io network, including Ad Markers API, Episodes API, Shows API, and 1 more. Tagged areas include Podcasting, Podcast Hosting, Publishing, Advertising, and Monetization.

Acast’s developer surface includes authentication, documentation, and 9 more developer resources.

🌐 Visit website 📡 Source on GitHub
34.7/100 thin ▬ flat Agent 20/100 agent aware Front door AI 1/6 silent saas Full breakdown ↓
scored 2026-10-04 · rubric v0.23.0
AccessPaidSelf serveFree trial⚡ Free to try
1 published contract
PodcastingPodcast HostingPublishingAdvertisingMonetizationMediaAudio

What this lets a business do 1

Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →

Advertising Sales & Operations Management
BC-3760
Ad Markers
PATCH /shows/{showId}/episodes/{episodeId}/ad-markers

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-10-04 · rubric v0.23.0
Composite quality — 34.7/100 · thin
Contract Quality 8.8 / 19
Developer Ergonomics 4.3 / 15
Access Clarity 5.4 / 15
Operational Transparency 2.8 / 10
Contract Governance 0.0 / 9
Discoverability 5.0 / 8
Regulatory Posture 2.6 / 15
Create-or-Update Ergonomics 0.0 / 10
Agent readiness — 20/100 · agent aware
Machine-Readable Contract 18 / 18
Agentic Access Contract 10 / 10
Documented Reversibility 0 / 6
MCP Server 0 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 7 / 7
Typed Event Surface 0 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
A2A Agent Card 0 / 8
Dry-Run / Simulate Mode 0 / 4
Delegated User Identity 0 / 6
Protected Resource Metadata 0 / 5
Registration Without a Human 0 / 6
Agentic Commerce Well-Known Document 0 / 5
Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.
Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.
The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/acast: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 4

Individual APIs this provider publishes, each with its own machine-readable definition.

Acast Webhooks

Register HTTP callback URLs to receive real-time notifications when events occur on your account - for example when a new episode is published. Webhooks are server-to-endpoint H...

Acast Ad Markers API

Place or update ad markers on an episode for dynamic ad insertion.

Acast Episodes API

Create, read, update, and delete episodes within a show.

Acast Shows API

Read podcast show metadata assigned to the API key's user.

Open Collections 4

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

API Collection

OPEN COLLECTION

Acast Publishing Ad Markers API

OPEN COLLECTION

Acast Publishing Ad Markers Episodes API

OPEN COLLECTION

Acast Publishing Ad Markers Shows API

OPEN COLLECTION

Pricing Plans 1

Published pricing tiers and plan structures.

Acast Plans Pricing

4 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Acast Rate Limits

3 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Acast Finops

FINOPS

Security Posture 3

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Acast Authentication

apiKey · 1 scheme

SECURITY

Acast Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Acast Vulnerability Disclosure

security.txt · contact published

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Acast Agentic Access

8 operations · 4 acting

8 operations · 4 acting

AGENTIC

Resources

Documentation 1

Reference material describing how the API behaves

Documentation
Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess
AgenticAccess

Access & Security 3

Authentication, authorization, and security posture

VulnerabilityDisclosure
VulnerabilityDisclosure
 DomainSecurity
DomainSecurity
 Authentication
Authentication

Operate 1

Status, limits, changes, and where to get help

RateLimits
RateLimits

Commercial 2

Pricing, plans, and the legal terms of use

Plans
Plans
 FinOps
FinOps

Company 2

The organization behind the API

LinkedIn
LinkedIn
 Website
Website

Other 1

Properties that don't map to a standard resource type

CapabilityMap
CapabilityMap

Source (apis.yml)

apis.yml Raw ↑ 
aid: acast
url: https://raw.githubusercontent.com/api-evangelist/acast/refs/heads/main/apis.yml
name: Acast
kind: company
description: Acast is a podcast hosting, distribution, and advertising marketplace that helps creators publish shows, distribute
  to every major listening platform, and monetize through dynamic ad insertion and sponsorships. Acast exposes a documented
  public Publishing API for programmatically managing shows and episodes - listing shows and episodes, fetching details, and
  creating, updating, and deleting episodes - plus placing ad markers and receiving webhook notifications for events like
  new episode publications. The API is documented openly at developers.acast.com, but access is gated - an X-API-Key credential
  is issued by Acast's customer success team to accounts on the Ace plan or in the Acast Creator Network.
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: paid
  onboarding: self-serve
  trial: true
  try_now: true
  public: false
  label: Paid (free trial) · Self-serve signup
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-09-03'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/acast.png
x-docs-platform: postman
x-docs-platform-confidence: high
x-docs-platform-checked: 2026-09-17
tags:
- Podcasting
- Podcast Hosting
- Publishing
- Advertising
- Monetization
- Media
- Audio
created: '2026-07-05'
modified: '2026-07-05'
specificationVersion: '0.23'
apis:
- aid: acast:acast-webhooks-api
  name: Acast Webhooks
  tags:
  - Webhook
  - Event
  - Notification
  tags_raw:
  - Webhooks
  - Events
  - Notifications
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://learn.acast.com/en/articles/3505461-what-is-a-webhook
  baseURL: https://api.acast.com
  properties:
  - url: https://learn.acast.com/en/articles/3505461-what-is-a-webhook
    type: Documentation
  description: Register HTTP callback URLs to receive real-time notifications when events occur on your account - for example
    when a new episode is published. Webhooks are server-to-endpoint HTTP callbacks, not a bidirectional or WebSocket transport.
    Available alongside the Publishing API on the Ace plan and Creator Network.
- aid: acast:acast-ad-markers-api
  name: Acast Ad Markers API
  description: Place or update ad markers on an episode for dynamic ad insertion.
  humanURL: https://developers.acast.com/
  baseURL: https://api.acast.com
  tags:
  - Ad Markers
  properties:
  - type: OpenAPI
    url: openapi/acast-ad-markers-api-openapi.yml
  - type: Documentation
    url: https://developers.acast.com/
  - type: APIReference
    url: https://learn.acast.com/en/articles/5790019-acast-publishing-api
- aid: acast:acast-episodes-api
  name: Acast Episodes API
  description: Create, read, update, and delete episodes within a show.
  humanURL: https://developers.acast.com/
  baseURL: https://api.acast.com
  tags:
  - Episodes
  properties:
  - type: OpenAPI
    url: openapi/acast-episodes-api-openapi.yml
  - type: Documentation
    url: https://developers.acast.com/
  - type: APIReference
    url: https://learn.acast.com/en/articles/5790019-acast-publishing-api
- aid: acast:acast-shows-api
  name: Acast Shows API
  description: Read podcast show metadata assigned to the API key's user.
  humanURL: https://developers.acast.com/
  baseURL: https://api.acast.com
  tags:
  - Shows
  properties:
  - type: OpenAPI
    url: openapi/acast-shows-api-openapi.yml
  - type: Documentation
    url: https://developers.acast.com/
  - type: APIReference
    url: https://learn.acast.com/en/articles/5790019-acast-publishing-api
common:
- type: CapabilityMap
  url: capabilities/acast-capability-edges.yml
  name: Acast Business Capability Map
- type: AgenticAccess
  url: agentic-access/acast-agentic-access.yml
- type: VulnerabilityDisclosure
  url: security/acast-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/acast-domain-security.yml
- type: Authentication
  url: authentication/acast-authentication.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/acast
- type: Website
  url: https://www.acast.com
- type: Documentation
  url: https://developers.acast.com/
- type: Plans
  url: plans/acast-plans-pricing.yml
- type: RateLimits
  url: rate-limits/acast-rate-limits.yml
- type: FinOps
  url: finops/acast-finops.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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